SharkFest'25 EUROPE

André is a senior Performance Consultant and troubleshooter at Rabobank, and has been analyzing packets for over 25 years. He started his career as a troubleshooter for network issues, both hard- and software, and later specialized in performance testing, which requires a combination of in-depth knowledge of networking protocols and coding skills. André also delivers an in-house ‘Wireshark bootcamp’ training course and contributed to the Wireshark project.

Daniel Spiekermann has more than 20 years of experience in communications technology and worked for many years as a forensic scientist for various law enforcement agencies, focusing on computer and network forensics. After completing his doctorate at the FernUniversität in Hagen in 2019, he began working as a professor of digital forensics at the Lower Saxony Police Academy in 2020. Since 2023, he has been teaching as a professor of distributed systems at the Dortmund University of Applied Sciences and Arts, conducting research on virtual networks and digital forensics.

For over 20 years, Eddi has been looking at network protocols to find (or rule out) network problems, vulnerabilities, ongoing hacking attacks or just for fun.

Working for the Swiss train company BLS as IT security analyst, he is reviewing the configuration of a multitude of systems to improve the overall security of the domain. Wireshark is one of the tools to verify the outcome of a configuration change.

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After studying "Telecommunications and computer systems", I worked for a global PABX manufacturer and now for a company that designs Ethernet switching and optical transmission systems, among other projects, as an embedded software engineer. Along the way I started using what was then called Ethereal, enhancing it and providing bug fixes, which eventually lead me to becoming a core developer.

Besides this I like to spend time in the air, either skydiving or flying sailplanes.

Jasper Bongertz is a network security expert with focus on network forensics and incident response at Airbus Defence and Space CyberSecurity. He started working freelance in 1992 while he was studying computer science at the Technical University of Aachen. In 2009, Jasper became a Senior Consultant and Trainer for Fast Lane, where he created a large training portfolio with a special focus on Wireshark and network hacking. In 2013, he joined Airbus Defence and Space CyberSecurity, before moving on to G Data Advanced Analytics in 2019 where he is now the head of the CyberSecurity Incident Response Team (CSIRT).

Jasper is the creator of the packet analysis tool TraceWrangler, which can be used to convert, edit and sanitize PCAP files. His blog regarding network analysis, network forensics and general security topics can be found at blog.packet-foo.com.

Johannes is a dedicated network security consultant at SVA System Vertrieb Alexander GmbH in Germany, with a master's degree in IT Security, specialising in IPv6 Security. He excels in implementing next-gen firewalls, DNS appliances, and IPv6 connectivity at customer sites. As a trainer, Johannes conducts classes on IPv6 and DNS, focusing on technical deep dives and security features. His insights and tutorials on IPv6, VPNs, DNSSEC, NTP, Wireshark, and enterprise-grade firewalls (Palo Alto Networks, Fortinet) can be found on his blog, https://netsec.blog/.

John Capobianco is a visionary leader, author, and evangelist at the forefront of IT operations, artificial intelligence, and automation. With over 25 years of experience in IT Operations across public and private sectors, John has served as a Technical Leader in AI at Cisco and is currently a Product Marketing Evangelist at Selector AI. His career blends deep technical expertise with a passion for innovation, helping bridge the gap between technology and business value.

John is the author of several influential works, including Automate Your Network and Cisco pyATS: Network Test and Automation Solution. A recognized thought leader, he frequently speaks at global conferences on topics such as AIOps, network automation, and the transformative impact of AI. His engaging style and real-world insights inspire professionals to embrace the future of IT operations.

Dr. Kelley Misata is a leader in cybersecurity strategy, open source
innovation, and nonprofits. As Founder of Sightline Security, she empowers
nonprofits to build robust cybersecurity. As President of OISF, she strengthens global
network security through Suricata, a premier open-source technology. Renowned for
translating complex cybersecurity challenges into actionable solutions, Dr. Misata has
transformed her journey as a cyberstalking survivor into advocacy for security, privacy, and
open-source practices. With a Ph.D. in Information Security from Purdue University and a
Business Administration and Marketing degree from Bentley University, she exemplifies
the fusion of expertise and leadership to address real-world threats and drive
transformative change.

Matthias started working in network analysis in 1996 as a Sniffer University staff instructor at Network General, where he delivered Sniffer University training and coordinated the European instructor team. In 2004, as a freelance instructor and network consultant, he wrote his own courseware on troubleshooting networks with Wireshark. Since 2009, Matthias has been working for ExperTeach, a German training and consulting company, where he manages and teaches the ExperTeach packet analysis curriculum for business customers. He has trained many individuals on Wireshark and helped them identify network and application-related problems since.

Megumi Takeshita, packet otaku, runs a packet company, ikeriri network service in Japan. Ikeriri offers services such as packet analysis for troubleshooting, debugging, security inspection. Ikeriri is also a reseller of wired/wireless capture and analysis products. Megumi has authored 10+ books about Wireshark and packet analysis. She also instructs Wireshark for Japanese companies including Japan Self Defense Forces and Chuo university as lecturer. She is one of contributors to the Wireshark projects including Japanese localization.

Helping customers and engineers to understand problems with communication protocols in their networks.
Debugging communication protocols and analysing log files for a living and having fun with it.
Finding problems in software since the era of punched tapes.
Working for Goto - them makers of GotoWebinar / GoToTraining

Ross has had a diverse career in engineering, beginning as a structural engineer, then project engineer for a gas utility, Ross was always quickly
assigned the de-facto network administrator, typically after no one else was brave enough to break, and later fix, the network. This lead to working as a network engineer designing and implementing enterprise networks for a major university hospital. Here he worked with
Extreme Networks, HP, Cisco, Tipping Point, among other network technology, as well as honed his Wireshark and protocol analysis skills. Ross
spent 7 years teaching data networking at Madison College, and in 2017 started authoring and producing IT training videos in Wireshark/Protocol
Analysis, Cisco, and general networking topics for www.Pluralsight.com. In his free time, you'll find Ross and his dog at the beach swimming and
surfing, traveling, hiking, or snowboarding somewhere in the western US.

Sake has been analyzing packets for over 20 years. During his work, Sake started developing functionality for Wireshark while working with the analyzer in his day-to-day job. He also enhanced multiple protocol dissectors. In 2007, Sake joined the Wireshark Core Development team. In 2009, After working for a reseller of networking equipment for 8 years, he started the company SYN-bit to provide network analysis and training services to enterprises across Europe.

Sergey started with system administrator in 1999. And since 2002 full time with linux systems.
Last almost 10 years he has been with Red Hat as a seniour, and now a principal instructor.

His first SharkFest was in 2014 in San Rafael and 10 years later in Vienna in 2024.

In 2016 he gave a tutorial at linux.conf.au in Geelong "Packets don't lie: how can you use tcpdump/tshark (wireshark) to prove your point". It has over 25 thousand views on youtube.

Tom Cordemans is a senior lecturer at the Odisee University of Applied Sciences and a researcher at the DistriNet Research Unit of KU Leuven in Gent, Belgium with a strong focus on IT, IoT and OT networks. He is a daily user of Wireshark and sharing knowledge and expertise is his trigger to give workshops and presentations.

Uli has been working somewhere between IT/OT infrastructure and IT/OT security for more than two decades. His current position is ‘IT Security Architect’ at Krones AG. He has been a member of the Core Developer Team since 2021.

Ville Haapakangas is a Senior Lecturer at Tampere University of Applied Sciences in Tampere, Finland, with a strong focus on Computer Networks and Cybersecurity. He is especially interested in using Wireshark as a pedagogical and research tool. Ville’s involvement with SharkFest EU extends over several years as both a participant and a speaker.